The Environmental Protection Agency's proposed reduction of 2014 blending requirements fails to account for the possible growth of E85 use, and it cuts far below the "blend wall," writes Wallace Tyner, a Purdue University professor of agricultural economics. The cuts go against the intention of Congress when it passed the Renewable Fuel Standard to help bring ethanol to the market, he writes. "I think it is a mistake to put the RFS that low. ... Setting the RFS at 13 [billion gallons] would destroy that incentive," Tyner writes.